Dynamic power distribution method and device for multi-gun cooperative charging pile

Abstract

The invention discloses a dynamic power distribution method and device for a multi-gun cooperative charging pile. The method comprises the following steps: S1, obtaining the total output power of a charging master station; s2, averagely distributing the total output power according to the number of the charging piles under the charging master station to obtain pre-distributed power of the charging piles; s3, the charging pile is in communication connection with the charging vehicle, and the charging power requirement of the vehicle is obtained; and S4, according to the changed required power of the vehicles, the output of each charging gun is adjusted in real time, so that each vehicle is close to the required maximum power during charging, the power of the charging piles is distributed and adjusted through the charging master station after the real-time required power of the vehicles is obtained, the output power of the charging guns is adjusted through the charging piles, and a multi-stage adjustment and supplement mechanism is formed. The dynamic power distribution method and device for the multi-gun cooperative charging pile provided by the invention have the effect of efficiently and reasonably adjusting the distribution power.

Description

Technical Field

[0001] This invention relates to the field of charging control, and in particular to a dynamic power distribution method and apparatus for multi-gun coordinated charging piles. Background Technology

[0002] With the rapid development of the electric vehicle industry, charging piles, as key facilities for energy replenishment of electric vehicles, have their construction and operation efficiency directly related to the charging experience of electric vehicle users and the operational efficiency of the entire transportation system.

[0003] Currently, traditional power allocation methods include two types: static allocation and dynamic allocation. Static allocation refers to allocating power according to a set rule without considering real-time charging demand, while dynamic allocation refers to allocating power dynamically based on the connection sequence of charging devices and their maximum power demand.

[0004] During vehicle charging, the charging power required by the vehicle is constantly changing. In order to make the power distribution more reasonable, it is necessary to take into account the changing needs of the vehicle. Summary of the Invention

[0005] To address the aforementioned issues, a dynamic power allocation method and apparatus for multi-gun coordinated charging piles are provided, aiming to solve the problems existing in the prior art.

[0006] The specific technical solution is as follows:

[0007] A dynamic power allocation method for multi-gun cooperative charging piles includes the following steps:

[0008] S1. Obtain the total output power of the charging station;

[0009] S2. The total output power is evenly distributed according to the number of charging piles under the charging station to obtain the pre-allocated power of the charging piles.

[0010] S3. Establish a communication connection between the charging pile and the charging vehicle to obtain the vehicle's charging power requirements.

[0011] S4. Adjust the output of each charging gun in real time according to the changing power demand of the vehicle, so that each vehicle is close to its maximum power demand during charging.

[0012] The dynamic power allocation method for multi-gun coordinated charging piles described above also has the following feature: step S2 includes the following steps:

[0013] S21. Set the charging piles in standby mode to standby mode, and the charging station sets the pre-allocated power of each standby charging pile to standby power.

[0014] The aforementioned dynamic power allocation method for multi-gun coordinated charging piles also has the following feature: each charging pile has two operating states during operation, one is a single-vehicle charging state and the other is a multi-vehicle charging state. Step S4 further includes the following steps:

[0015] S41. Determine whether multiple charging vehicles are connected to the charging pile;

[0016] S42. If not, the charging station is in single-vehicle charging state and enters the single-vehicle power distribution step.

[0017] S43. If so, the charging station is in a multi-vehicle charging state and enters the multi-vehicle power distribution step.

[0018] The aforementioned dynamic power allocation method for multi-gun coordinated charging piles also has the following feature: the single-vehicle power allocation step includes:

[0019] S421. Determine whether the pre-allocated power of a single charging pile exceeds the charging power required by the vehicle.

[0020] S422. If so, after the pre-allocated power of the charging pile is output to the vehicle, the remaining power is adjusted to standby power and enters the standby pool.

[0021] S423. If not, after all the pre-allocated power of the charging pile is output to the vehicle, the backup power in the backup pool is called up so that the vehicle charging power reaches the maximum required power.

[0022] The aforementioned dynamic power allocation method for multi-gun coordinated charging piles also has the following feature: the multi-vehicle power allocation step includes:

[0023] S431. The pre-allocated power of the charging pile is evenly distributed according to the number of vehicles to obtain the average power of a single charging gun.

[0024] S432. Determine whether the total power demand of all vehicles exceeds the pre-allocated power of a single pile.

[0025] S433. If not, proceed to the single pile allocation stage;

[0026] S434. If so, proceed to the supplementary allocation phase.

[0027] The aforementioned dynamic power allocation method and apparatus for multi-gun coordinated charging piles also have the following feature: the single-pile allocation stage includes:

[0028] S4331. Determine whether the power of the average single gun is greater than the power required by each vehicle.

[0029] S4332. If so, then the power of the single gun is evenly distributed to charge each vehicle. When the power of the single gun is greater than the power required by the vehicle, the remaining power is adjusted to reserve power and enters the reserve pool.

[0030] S4333, If not, adjust the output power of each charging gun within the pre-allocated power range according to the actual needs of each vehicle, prioritize vehicles with low power needs, calculate the difference between the power demand of high-power vehicles and the output power of the charging gun, and call the backup power in the backup pool to achieve the highest power demand of the vehicle.

[0031] The aforementioned dynamic power allocation method for multi-gun coordinated charging piles also has the following feature: the supplementary allocation stage includes:

[0032] S4341. Charge the vehicle using the power of the evenly distributed single gun and calculate the difference between the vehicle's required power and the power of the evenly distributed single gun.

[0033] S4342. Determine whether the backup power in the backup pool is sufficient;

[0034] S4343. If so, utilize the backup power to ensure that each vehicle's charging power reaches its maximum required power.

[0035] S4344. If not, continue to charge the vehicle using the power of the single gun evenly, monitor the backup battery in real time, and promptly call up the backup power when the backup battery enters the backup power.

[0036] A dynamic power distribution device for multi-gun coordinated charging piles, the device comprising a charging station, multiple charging piles, and a control module, wherein the multiple charging piles are all powered by the charging station, and each charging pile is provided with multiple charging guns, and the control module is used to execute the dynamic power distribution method for multi-gun coordinated charging piles as described in any one of claims 1-7.

[0037] In summary, the beneficial effects of this scheme are:

[0038] The dynamic power allocation method and device for multi-gun coordinated charging piles provided by this invention obtains the real-time power demand of the vehicle and then uses the charging station to allocate and adjust the power of the charging piles. The charging piles then adjust the output power of the charging guns, forming a multi-level adjustment and supplementary mechanism. The dynamic power allocation method and device for multi-gun coordinated charging piles provided by this invention have the effect of efficiently and rationally adjusting and allocating power. Attached Figure Description

[0039] Figure 1 This is a flowchart illustrating the dynamic power allocation method for multi-gun coordinated charging piles according to the present invention. Detailed Implementation

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0042] The present invention will be further described below with reference to specific embodiments, but these are not intended to limit the scope of the invention.

[0043] Figure 1 This is a flowchart illustrating the dynamic power allocation method for multi-gun coordinated charging piles according to the present invention, as shown below. Figure 1 As shown, the dynamic power allocation method and apparatus for multi-gun coordinated charging piles provided in this embodiment include the following steps:

[0044] S1. Obtain the total output power of the charging station;

[0045] S2. The total output power is evenly distributed according to the number of charging piles under the charging station to obtain the pre-allocated power of the charging piles.

[0046] S3. Establish a communication connection between the charging pile and the charging vehicle to obtain the vehicle's charging power requirements.

[0047] S4. Adjust the output of each charging gun in real time according to the changing power demand of the vehicle, so that each vehicle is close to its maximum power demand during charging.

[0048] It should be noted that after the charging pile establishes communication with the vehicle, it will obtain the vehicle's charging power requirements in real time.

[0049] In the above embodiment, step S2 includes the following steps:

[0050] S21. Set the charging piles in standby mode to standby mode, and the charging station sets the pre-allocated power of each standby charging pile to standby power.

[0051] In the above embodiment, each charging pile has two operating states: a single-vehicle charging state and a multi-vehicle charging state. Step S4 also includes the following steps:

[0052] S41. Determine whether multiple charging vehicles are connected to the charging pile;

[0053] S42. If not, the charging station is in single-vehicle charging state and enters the single-vehicle power distribution step.

[0054] S43. If so, the charging station is in a multi-vehicle charging state and enters the multi-vehicle power distribution step.

[0055] In the above embodiments, the single-vehicle power distribution step includes:

[0056] S421. Determine whether the pre-allocated power of a single charging pile exceeds the charging power required by the vehicle.

[0057] S422. If so, after the pre-allocated power of the charging pile is output to the vehicle, the remaining power is adjusted to standby power and enters the standby pool.

[0058] S423. If not, after all the pre-allocated power of the charging pile is output to the vehicle, the backup power in the backup pool is called up so that the vehicle charging power reaches the maximum required power.

[0059] In the above embodiments, the multi-vehicle power allocation step includes:

[0060] S431. The pre-allocated power of the charging pile is evenly distributed according to the number of vehicles to obtain the average power of a single charging gun.

[0061] S432. Determine whether the total power demand of all vehicles exceeds the pre-allocated power of a single pile.

[0062] S433. If not, proceed to the single pile allocation stage;

[0063] S434. If so, proceed to the supplementary allocation phase.

[0064] In the above embodiments, the single-pile allocation phase includes:

[0065] S4331. Determine whether the power of the average single gun is greater than the power required by each vehicle.

[0066] S4332. If so, then the power of the single gun is evenly distributed to charge each vehicle. When the power of the single gun is greater than the power required by the vehicle, the remaining power is adjusted to reserve power and enters the reserve pool.

[0067] S4333, If not, adjust the output power of each charging gun within the pre-allocated power range according to the actual needs of each vehicle, prioritize vehicles with low power needs, calculate the difference between the power demand of high-power vehicles and the output power of the charging gun, and call the backup power in the backup pool to achieve the highest power demand of the vehicle.

[0068] It should be noted that within the pre-allocated power range of the charging station, the reason for prioritizing vehicles with low power requirements is that low-power vehicles are more likely to reach their power limit, and the time a vehicle maintains its power limit is generally shorter. After a low-power vehicle reaches its power limit, it will quickly enter a slow charging state, release the excess power, and then supplement the high-power vehicles, which can effectively balance the user experience.

[0069] In the above embodiments, the supplementary allocation phase includes:

[0070] S4341. Charge the vehicle using the power of the evenly distributed single gun and calculate the difference between the vehicle's required power and the power of the evenly distributed single gun.

[0071] S4342. Determine whether the backup power in the backup pool is sufficient;

[0072] S4343. If so, utilize the backup power to ensure that each vehicle's charging power reaches its maximum required power.

[0073] S4344. If not, continue to charge the vehicle using the power of the single gun evenly, monitor the backup battery in real time, and promptly call up the backup power when the backup battery enters the backup power.

[0074] A dynamic power distribution device for multi-gun coordinated charging piles is provided. The device includes a charging station, multiple charging piles, and a control module. The multiple charging piles are all powered by the charging station. Each charging pile is equipped with multiple charging guns. The control module is used to execute the dynamic power distribution method for multi-gun coordinated charging piles according to any one of claims 1-7.

[0075] It should be noted that when all charging stations are fully loaded and the power demand of all vehicles is greater than the average power of a single charging gun, the charging station is at full capacity. Each vehicle's charging power is the average power of a single charging gun. When a vehicle's power demand drops to less than the average power of a single charging gun, the difference is preferentially supplemented to other charging guns under the same charging station. When the pre-allocated power of a charging station exceeds the power demand of that charging station, the excess power enters the reserve pool to wait for other charging stations to call upon it. The order of calling the reserve power is based on the time order of access to the charging stations.

[0076] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the content of this specification should be included within the protection scope of the present invention.

Claims

1. A dynamic power allocation method for multi-gun coordinated charging piles, characterized in that: Includes the following steps: S1. Obtain the total output power of the charging station; S2. The total output power is evenly distributed according to the number of charging piles under the charging station to obtain the pre-allocated power of the charging piles. S3. Establish a communication connection between the charging pile and the charging vehicle to obtain the vehicle's charging power requirements. S4. Adjust the output of each charging gun in real time according to the changing power demand of the vehicle, so that each vehicle is close to its maximum power demand during charging.

2. The dynamic power allocation method for multi-gun coordinated charging piles according to claim 1, characterized in that: Step S2 includes the following steps: S21. Set the charging piles in standby mode to standby mode, and the charging station sets the pre-allocated power of each standby charging pile to standby power.

3. The dynamic power allocation method for multi-gun coordinated charging piles according to claim 2, characterized in that: Each of the charging piles has two operating states: a single-vehicle charging state and a multi-vehicle charging state. Step S4 also includes the following steps: S41. Determine whether multiple charging vehicles are connected to the charging pile; S42. If not, the charging station is in single-vehicle charging state and enters the single-vehicle power distribution step. S43. If so, the charging station is in a multi-vehicle charging state and enters the multi-vehicle power distribution step.

4. A dynamic power allocation method for multi-gun coordinated charging piles according to claim 3, characterized in that: The single-vehicle power allocation step includes: S421. Determine whether the pre-allocated power of a single charging pile exceeds the charging power required by the vehicle. S422. If so, after the pre-allocated power of the charging pile is output to the vehicle, the remaining power is adjusted to standby power and enters the standby pool. S423. If not, after all the pre-allocated power of the charging pile is output to the vehicle, the backup power in the backup pool is called up so that the vehicle charging power reaches the maximum required power.

5. A dynamic power allocation method for multi-gun coordinated charging piles according to claim 3, characterized in that: The multi-vehicle power allocation step includes: S431. The pre-allocated power of the charging pile is evenly distributed according to the number of vehicles to obtain the average power of a single charging gun. S432. Determine whether the total power demand of all vehicles exceeds the pre-allocated power of a single pile. S433. If not, proceed to the single pile allocation stage; S434. If so, proceed to the supplementary allocation phase.

6. A dynamic power allocation method for multi-gun coordinated charging piles according to claim 5, characterized in that: The single-pile allocation phase includes: S4331. Determine whether the power of the average single gun is greater than the power required by each vehicle. S4332. If so, then the power of the single gun is evenly distributed to charge each vehicle. When the power of the single gun is greater than the power required by the vehicle, the remaining power is adjusted to reserve power and enters the reserve pool. S4333, If not, adjust the output power of each charging gun within the pre-allocated power range according to the actual needs of each vehicle, prioritize vehicles with low power needs, calculate the difference between the power demand of high-power vehicles and the output power of the charging gun, and call the backup power in the backup pool to achieve the highest power demand of the vehicle.

7. A dynamic power allocation method for multi-gun coordinated charging piles according to claim 5, characterized in that: The supplementary allocation phase includes: S4341. Charge the vehicle using the power of the evenly distributed single gun and calculate the difference between the vehicle's required power and the power of the evenly distributed single gun. S4342. Determine whether the backup power in the backup pool is sufficient; S4343. If so, utilize the backup power to ensure that each vehicle's charging power reaches its maximum required power. S4344. If not, continue to charge the vehicle using the power of the single gun evenly, monitor the backup battery in real time, and promptly call up the backup power when the backup battery enters the backup power.

8. A dynamic power distribution device for multi-gun coordinated charging piles, characterized in that: The device includes a charging station, multiple charging piles, and a control module. The multiple charging piles are all powered by the charging station, and each charging pile is equipped with multiple charging guns. The control module is used to execute the dynamic power distribution method for multi-gun coordinated charging piles as described in any one of claims 1-7.

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